Great Britain's women levelled their two-match series against the Czech Republic with a 81-57 win in Prague.
Johannah Leedham led the way for the visitors with 19 points as GB bounced back from yesterday's 67-56 defeat.
GB seized control from their off an moved into a 18-11 lead by the end of the first quarter.
They extended that to 42-27 at half-time and led by 17 points going into the final quarter at 65-48.Delighted GB coach Tom Maher described it as an "unbelievable win" after seeing his side down the world's fourth-ranked side.
He said www.gbbasketball.com: "The Czechs started out lacking energy and we jumped on them and never let them back in the game.
"In the past I'm sure we would have, but we've grown a lot and I couldn't be happier."
He added: "It was an unbelievable win; it was like a dream and we played super. Our efforts were fantastic, some of the rebounding was really special and we played really good basketball."
Leedham, on her 50th appearance, echoed those thoughts, saying: "That was absolutely amazing.
"It's the first time I've felt we've all clicked and been on the same page, and really held together for the full 40 minutes.
"The defence was unbelievable and I'm astounded at just how unbelievable it was."